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IEC 60689 Ed. 1.0 b:1980

M00001257

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IEC 60689 Ed. 1.0 b:1980 [ Withdrawn ] Measurements and test methods for 32 kHz quartz crystal units for wrist watches and standard values

standard by International Electrotechnical Commission, 01/01/1980

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Applies to 32 kHz quartz crystal units for wrist watches. Gives methods of measurement of resonance frequency, resonance resistance, frequency-temperature dependence and frequency pulling. Lays down test methods in accordance with IEC 68-2-6, 68-2-20, 68-2-21 and 68-2-27.

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Edition: 1.0 Published: 01/01/1980 Number of Pages: 33 File Size: 1 file , 1.2 MB